Gleann met us at the Tower Museum and spent some time learning about our connection to Derry history before we started our walk. He's a good listener and communicator who made everyone feel like they were part of the tour. We covered a lot of history on the walls and he helped my family imagine what life was like for the ancestors. The Bogside portion of the tour was also great, viewing the murals and talking about the connections of Bloody Sunday to our life in the US today. Hightly recommended.